From the Central Intelligence Agency, this site provides information on the history, people, government, economy, geography, communications, transportation, military, and transnational issues for 267 world entities.

Over 200,000 objects from North American, Mexican & Central American, South American, African, Asian, and Pacific Ethnographic Collections with images and detailed description, linked to the original catalogue pages, field notebooks, and photographs are available online. (American Museum of Natural History)

The Aztec capital of Tenochtitlan was the hub of a rich civilization that dominated the region of modern-day Mexico at the time the Spanish forces arrived. In this lesson, students will learn about the history and culture of the Aztecs and discover why their civilization came to an abrupt end.